void collide( Collider collider, bool contact, Body body1, Body body2, int i, int j )
{
if ( collider.collide( body1, body2 ) ) {
if ( contact ) {
//Console.WriteLine( "contact continued: " + body1 + " [" + i + "] vs " + body2 + " [" + j + "]" );
} else {
//Console.WriteLine( "contact started: " + body1 + " [" + i + "] vs " + body2 + " [" + j + "]" );
addContact( body1, body2 );
}
} else if ( contact ) {
//Console.WriteLine( "contact ended: " + body1 + " [" + i + "] vs " + body2 + " [" + j + "]" );
removeContact( body1, body2 );
}
}